L.A. Reid, Demi Lovato, Britney Spears and Simon Cowell on “The X Factor.” (Ray Mickshaw/Fox)

The next night, Fox will air the second half of its “X Factor” season debut, and the season debut of the overhauled “Glee” — on the night of the “AGT” finale.

This seaon, “X Factor” will feature new chick judges Britney Spears and Demi Lovato.

Last year, Fox waited until Sept. 21, during the crush of Premiere Week, to unveil Cowell’s new show, which at that time featured chick judges Paula Abdul and Nicole Scherzinger. That premiere attracted about 13 million viewers — well below the 20 million that Cowell had said was the threshold for not being a flat-out “disappointment.” (Hence Abdul and Scherzinger’s replacement.)

Fox will launch most of its Tuesday, Friday and Sunday slates during Premiere Week, the week of Sept.­ 24. That Tuesday, the network will unveil its new Monday doc drama “The Mob Doctor,” after the season debut of “Bones.”

Friday, Sept. 28 marks the return of “Fringe” (“Touch” returns, at 8, on Friday, Oct. 26.) And on Sunday, Fox launches the season debuts of “The Simpsons,” “Bob’s Burgers,” “Family Guy” and “American Dad.”

The next week, the network will unveil most of its Tuesday live-action comedy block, including new “Ben and Kate” at 8:30 p.m.; the season debut of “New Girl” at 9; and Mindy Kaling’s “The Mindy Project” at 9:30. (The season debut of “Raising Hope” at 8 p.m. Tuesday is set for the following Tuesday).

“Ben and Kate” stars Dakota Johnson — daughter of Don Johnson and Melanie Griffith — and Nat Faxon, Oscar-winning co-screenwriter of “The Descendants,” as siblings. You know the drill: She’s an overly responsible, slightly uptight single mom, he’s the kid-at-heart brother, they push each other out of their comfort zones and hilarity ensues.